EP0054785B1 - Process for the manufacture of medical and dental, alloplastic, endoprosthetic and exoprosthetic fittings - Google Patents

Process for the manufacture of medical and dental, alloplastic, endoprosthetic and exoprosthetic fittings Download PDF

Info

Publication number
EP0054785B1
EP0054785B1 EP81110135A EP81110135A EP0054785B1 EP 0054785 B1 EP0054785 B1 EP 0054785B1 EP 81110135 A EP81110135 A EP 81110135A EP 81110135 A EP81110135 A EP 81110135A EP 0054785 B1 EP0054785 B1 EP 0054785B1
Authority
EP
European Patent Office
Prior art keywords
alloplastic
surfaces
fitting
process
organ
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP81110135A
Other languages
German (de)
French (fr)
Other versions
EP0054785A1 (en
Inventor
Werner H. Dr.med.dent. Mörmann
Marco Dr. Brandestini
Original Assignee
Werner H. Dr.med.dent. Mörmann
Marco Dr. Brandestini
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CH956180 priority Critical
Priority to CH9561/80 priority
Application filed by Werner H. Dr.med.dent. Mörmann, Marco Dr. Brandestini filed Critical Werner H. Dr.med.dent. Mörmann
Publication of EP0054785A1 publication Critical patent/EP0054785A1/en
Application granted granted Critical
Publication of EP0054785B1 publication Critical patent/EP0054785B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/3094Designing or manufacturing processes
    • A61F2/30942Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00Dental prostheses; Making same
    • A61C13/0003Making bridge-work, inlays, implants or the like
    • A61C13/0004Computer-assisted sizing or machining of dental prostheses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00Dental auxiliary appliances
    • A61C19/04Measuring instruments specially adapted for dentistry
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00Filling or capping teeth
    • A61C5/70Tooth crowns; Making thereof
    • A61C5/77Methods or devices for making crowns
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00Impression cups, i.e. impression trays; Impression methods
    • A61C9/004Means or methods for taking digitized impressions
    • A61C9/0046Data acquisition means or methods
    • A61C9/0053Optical means or methods, e.g. scanning the teeth by a laser or light beam
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05BCONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00Programme-control systems
    • G05B19/02Programme-control systems electric
    • G05B19/42Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine
    • G05B19/4202Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model
    • G05B19/4207Recording and playback systems, i.e. in which the programme is recorded from a cycle of operations, e.g. the cycle of operations being manually controlled, after which this record is played back on the same machine preparation of the programme medium using a drawing, a model in which a model is traced or scanned and corresponding data recorded
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00Filling or capping teeth
    • A61C5/70Tooth crowns; Making thereof
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/3094Designing or manufacturing processes
    • A61F2/30942Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques
    • A61F2002/30952Designing or manufacturing processes for designing or making customized prostheses, e.g. using templates, CT or NMR scans, finite-element analysis or CAD-CAM techniques using CAD-CAM techniques or NC-techniques

Description

  • The invention relates to a method for producing medical or dental alloplastic fitting bodies.
  • When incorporating alloplastic implants, the exact fit for establishing a good anchorage and permanent fit for the physiological load on the receiving tissue, but also for the balanced physical load on the alloplastic and / or its function, plays a decisive role. This applies, for example, to endosseous and alveolar implants in the jaw area, for exoprosthetic, optical eye cups, for hip joint endoprostheses, but also for purely dental alloplastic, endoprosthetic and exoprosthetic fitting bodies, such as tooth fillings or crowns and bridges. In the case of bone implants and the aforementioned visual aids, custom-made fitting bodies are usually used, which are either selected according to individual dimensions or the organ to be supplied is designed according to ready-made materials.
  • In dentistry, the individual design of fitting bodies dominates, which are manufactured according to traditional principles of dental technology. The application of the aforementioned method in the dental field is listed below, for example:
    • Dental fillings of all kinds are to be regarded as alloplastic (= foreign bodies) implants, the purpose of which is to permanently restore the shape and function of the tooth as an organ, in particular the tooth crown. Amalgam, metal casting (gold), ceramic and plastic composite fillings are known.
  • With the help of conventional dental technology, fillings in the form of inlays, onlays and overlays can be satisfactorily produced in terms of material resistance, physical properties and morphology; disadvantageous are the high material costs e.g. Gold. In addition, the conventional dental manufacturing of fillings, whether made of metal or when using other materials, such as composite or ceramic, requires a variety of technical processes, such as impression taking, model making, wax modeling, embedding the wax model, metal casting or plastic injection molding or plugs, presses and hot -Polymerization.
  • In the US patent 4182312 it was proposed to mechanically scan three-dimensional surface information of teeth and surrounding tissue directly on the patient in order to control processing machines for the production of dental prostheses, as in a copy milling machine. For this purpose, a probe with a transmission rod firmly attached to it, in contact with the surfaces of interest, must be guided by the dentist in the patient's mouth. The disadvantage here is that a large number of scanning movements have to be carried out to completely register an area, which is time-consuming and burdensome for the patients. It is also cumbersome that the probe tips have to be changed depending on the shape of the processing tool required. In addition, a fixed reference plane between the machining tool and the scanning element is required. It is disadvantageous and uncomfortable for the patient that with this type of scanning the registration unit must be attached to the patient's jaw with plaster using a tray. The attachment of these extensive auxiliary devices to the patient impedes access for undisturbed scanning with the probe. From the dental point of view, these extensive auxiliary measures directly on and in the patient's mouth are to be regarded as a much greater burden for the patient than the conventional molding and manufacturing methods of dental prostheses.
  • In addition to the mechanical scanning method described in the above US Patent 4182312, optical 3-dimensional measuring devices are also known (Butcher, GW et al., Brit. Dent. J., 1981, 151, p. 304; Mikhail, EM chap. 17-19 of "Photogrammetry"; FH Moffit ed. pp. 579-582, Harper & Row, New York 1980).
  • What they all have in common is that they are used exclusively for diagnostic purposes. The Butcher and Mikhail devices are non-automatic instruments that require time-consuming, manual coordinate determination.
  • Moire topography provides a technique for automatic profile recording, but is limited in the article by K. Takasaki (cMoire Topography, Systems and Applications »chap. 8 in Handbook of Non-topographic Photogrammetry, HM Karara, ed., Am. Soc. Of Photogrammetry everybody press 1979) on a roughly graded, not absolute image depth determination.
  • US Pat. No. 3,861,044 describes in general terms a method in which a fitting body is to be produced for insertion into a recess in a tooth. The shape of the recess is recorded photographically and data of the recording are saved. The tooth's recess is then filled with wax, the wax filler is brought into the desired final shape by the dentist and then a new picture is taken in order to also save the data. The entirety of the data is then used to control a machine tool and the definitive filler is produced.
  • In the known method, a type of provisional filler must therefore be produced in an intermediate step. In contrast, the method according to the invention allows the production of a final packing with a single image, which is processed to a complete construction plan using preprogrammed data, without the need for a provisional packing and a second photograph.
  • European patent application EP-A-0040165 relates to a method which Roughly approximates that of the present invention, without, however, showing the most important feature, namely the completion of the construction plan in terms of data, in a manner which is understandable to the person skilled in the art. It should be expressly pointed out that this document falls under Art. 54 (3) EPCe for claims 1, 2 and 4-6, but is not of importance for the question of the inventive step of these claims.
  • In the solution according to the invention, which is explained in more detail below, the known cumbersome techniques are avoided.
  • The object of the invention is e.g. Elaborate fillings in the sense of inlay fillings from a factory-prepared filling material as a fitting body made of hard material, such as metal, ceramic, plastic, composite plastic or combinations thereof, bypassing conventional dental technology, according to individual cavity dimensions.
  • According to the invention, the object is achieved in a method for producing medical or dental alloplastic, endoprosthetic and exoprosthetic individual fitting bodies made of hard materials in that surfaces of body organs or surfaces created on body organs, physical forms and spaces in at least parts of their walls and their boundaries and the like the above-mentioned designs adjacent, non-operationally processed surfaces in their spatial and topographical form are optically recorded in a contact-free manner and registered by means of 3-dimensional image evaluation, and based on the registration a construction plan of the fitting body required for organ supplementation is calculated and depicted for control purposes Creation of this construction plan, optically undetected surfaces can be supplemented by adapting pre-programmed radii of curvature to the boundary lines of the detected surfaces, and finally d he intended material is designed by the construction plan and a machining program into an alloplastic body which is at least approximately adapted to the shape of the organ concerned. Preferred embodiments of the method according to the invention can be found in claims 2 to 6.
  • Surfaces to which the fitting body can be adapted are understood to mean all tissue organ surfaces of the human body, including also soft or hard tissue or body substances that are not actually tissue, e.g. Tooth enamel.
  • Exemplary embodiments are explained in more detail below.
  • Show it
    • 1 is a schematic representation of the sequence of the method according to the invention,
    • 2 shows a diagrammatic and schematic view of a natural tooth crown with an inlay cavity preparation,
    • Fig. 3 is a plan view of a partial row of teeth and
    • Fig. 4 is a partial sectional view through a row of teeth with an indication of the position of the image recording head.
  • According to the schematic representation in FIG. 1, a pictorial acquisition method, be it optical or electron-optical, is used, for example a tooth cavity directly in the oral cavity of the patient or outside the oral cavity, on an impression of the cavity, by positioning an image recording head in its geometry, to record their boundary lines and neighboring relationships and to transmit this information to a program-controlled computer for calculating a 3-dimensional construction representation. The dentist checks the computer representation of the tooth cavity for completeness with respect to the operational requirements on a screen and, if necessary, the image recording head is positioned more favorably or operative changes or additions to the preparation on the tooth are carried out. The computer representation of the tooth cavity, which is found to be correct, is supplemented on the basis of the neighboring and boundary structures by extrapolations of the computer and, if necessary, by direct design information from the dentist, for example keyboard, light pen or digitizer, in its missing outer tooth surfaces so that it contains a complete tooth in all Partial restoring fit results. After completion of the design, the computer controls the processing to produce the filling fitting from a pre-dimensioned filling raw material based on the design data and a control program. As a result, bypassing conventional laboratory working methods, an individual fitting body can be efficiently manufactured outside the oral cavity and is immediately available to the dentist for incorporation.
  • The situation when using the method according to the invention in the dental field is explained, for example, with reference to FIGS. 2 to 4.
  • Fig. 2 shows the view of a natural tooth crown 1 with a typical tooth cavity 2, which extends over several tooth surfaces, the axial walls 3, 4 of which in each part have an occlusal, i.e. angles of at least 4 ° to the occlusal surface are inclined to a common insertion axis 7. The cavity floor is formed by horizontal surfaces 5 and the cavity edge is formed by a bevel 6.
  • 3 shows the occlusal view of a three-surface, mesialocclusal-distal inlay cavity 2, which is open in all wall parts according to the occlusal direction, with a mesial 8 and distal 9 neighboring tooth.
  • 4 shows the representation of a mesio-distal, central sectional profile of the images to be imaged Tooth cavity 2, with mesial 8 and distal 9 neighboring tooth and outline of the image recording head 10. The outer enamel layer 81, the dentin 82, the pulp cavity 83, can be seen on the teeth. Line 21 marks the outline of the fitting to be manufactured.
  • Prior to the visual recording of the surfaces of the body organs to be supplied or the impressions made with an impression material, their surfaces can be at least partially provided with an imaging coating. The image to be captured is strengthened or differentiated or contrasted by the coating, and disruptive structures can be covered, which facilitates the pictorial capture.
  • The invention provides the dentist, for example, replacing the classic impression and laboratory filling production, with a method that captures the dimensionally true cavity according to an inlay preparation, stores it and displays it for control purposes. The processing machine available in dental practice or in a laboratory produces the fitting body, for example, by machining, grinding or eroding, directly from a blank according to the stored information. The fitting body is then immediately available to the dentist for dental treatment.
  • The described method makes it possible to produce alloplastics under optimized conditions in terms of materials and work technology through the combined use of measurement, recording, display and calculation methods already used in technology in the medical-dental field. This results in an increase in quality and a reduction in costs.

Claims (6)

1. Process for the manufacture of individually shaped medical and dental, alloplastic, endoprosthetic and exoprosthetic fittings made of hard materials, wherein the surfaces of organs of the body or surfaces created at organs of the body, three dimensional forms and spaces along at least part of their walls and boundaries and operatively non treated surfaces adjacent to those configurations are optically detected in a contact-free manner with respect to their topographical and spatial characteristic and then are recorded by means of 3-dimensional image analysis, wherein by means of this record a design plan for a fitting suited for restoring said organ is calculated and graphically displayed for a visial check, wherein when making this design plan those surfaces which were not optically detected are completed by adapting pre-programmed curvatures to the boundaries of detected surfaces and wherein finally the respective material is shaped on the basis of said design plan and of a machining programme to an alloplastic fitting, the shape of which is adapted at least approximately to the shape of said organ.
2. Process as defined in claim 1, wherein the recorded surface information and design data, respectively, are displayed on a monitor, according to which data a calculator calculates and displays the alloplastic fitting matching into or onto the recorded shape and wherein instructions for constructive corrections or completions directly can be introduced by the operator until the design corresponds to the final requirements, whereafter the calculated design data are transmitted to the control unit of a processing machine.
3. Process as defined in one of the claims 1 to 2, wherein before performing the image detection of the surfaces of the organs of the body or of the molds made thereof by an impression material said surfaces are at least partly provided with an image coating.
4. Process as defined in one of the claims 1 to 3, wherein the organs neighboring and functionally antagonistic to the organ to be alloplastically restored are detected with respect to their orientation in space and to their distance and wherein the alloplastic fittings are shaped according to the respective neighboring and antagonistic relation with the possible exception of intraoperative manually performed adaptions.
5. Process as defined in one of the claims 1 to 4, wherein a control device for a processing machine is used and is further programmed in such a way that at least on portions of the fitting surface reduced dimensions are produced, whereby between the alloplastic fittings and the detected inner or outer form of the organ to be restored a clearance is provided for a material necessary for the adaption or adhesion of the alloplastic fitting to the tissue or for an intermediate substance necessary for physiological reasons or in such a way that depending on the application the control programme at least partly produces larger dimensions for technical or functional reasons.
6. Process as defined in claim 5, wherein the control device for shaping the outer surface of the alloplastic fitting is further programmed in such a way that this surface in its whole boundary region is shaped at least approximately as a continuation of the outer surface of the organ, wherein according to individual requirements given dimensions are used depending on aspects of its form or its function.
EP81110135A 1980-12-24 1981-12-04 Process for the manufacture of medical and dental, alloplastic, endoprosthetic and exoprosthetic fittings Expired EP0054785B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CH956180 1980-12-24
CH9561/80 1980-12-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT81110135T AT14073T (en) 1980-12-24 1981-12-04 Method for producing medical and dental alloplastic, endo- and exoprothetic fit bodies.

Publications (2)

Publication Number Publication Date
EP0054785A1 EP0054785A1 (en) 1982-06-30
EP0054785B1 true EP0054785B1 (en) 1985-07-03

Family

ID=4353263

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110135A Expired EP0054785B1 (en) 1980-12-24 1981-12-04 Process for the manufacture of medical and dental, alloplastic, endoprosthetic and exoprosthetic fittings

Country Status (4)

Country Link
EP (1) EP0054785B1 (en)
JP (1) JPH0317494B2 (en)
AT (1) AT14073T (en)
DE (1) DE3171266D1 (en)

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091876A1 (en) * 1982-04-14 1983-10-19 Duret, François Device for taking impressions by optical means, particularly for the automatic shaping of dental prostheses
FR2536654A1 (en) * 1982-11-30 1984-06-01 Duret Francois Method for producing a dental prosthesis
EP0129531A2 (en) * 1983-06-17 1984-12-27 N.V. Stewal S.A. Process and device for producing a prosthesis
EP0161400A1 (en) * 1984-04-19 1985-11-21 Wolfgang Orthuber Method of dentistry and device for bending a piece of wire and subjecting it to a torsional stress
EP0229266A2 (en) * 1985-11-29 1987-07-22 Dietmar Prof. Dr. Kubein-Meesenburg Reconstruction method for the upper jaw teeth
DE3604531A1 (en) * 1986-02-13 1987-08-20 Kurt Kern Gmbh & Co Kg Method of producing denture parts and device for performing the method
FR2594320A1 (en) * 1986-02-20 1987-08-21 Spad Lab Method of improving the albedo of living elements for their three-dimensional optical analysis
FR2616316A1 (en) * 1987-06-15 1988-12-16 Cougoulie Jean Pierre Method for producing an endo-osseous oral implant
EP0299490A2 (en) * 1987-07-16 1989-01-18 Hans Dr. Steinbichler Method for producing dental prosthesis
EP0345975A2 (en) * 1988-06-09 1989-12-13 William Loran Apparatus for indirect dental machining
EP0348061A2 (en) * 1988-06-24 1989-12-27 Zeneca Limited Stereolithographic Process for Preparing Prosthetic Devices
WO1990014803A1 (en) * 1989-05-31 1990-12-13 Berit Lindqvist Method of documentation and measurement within dentistry and a device for carrying out the method
WO1991003989A1 (en) * 1989-09-22 1991-04-04 Peter Rohleder Process and device for the production of an individual tooth replacement part
WO1991003988A1 (en) * 1989-09-22 1991-04-04 Peter Rohleder Device for the production of tooth replacement parts
EP0490848A2 (en) * 1990-12-12 1992-06-17 Nobelpharma AB A procedure and apparatus for producing individually designed, three-dimensional bodies usable as tooth replacements, prostheses, etc.
EP0543258A2 (en) * 1991-11-17 1993-05-26 Liconic Ag Method and device for the production of dental prosthesis
US5320462A (en) * 1989-08-17 1994-06-14 Maud Bergman Method of producing dental restorations and medical prostheses
US5358406A (en) * 1990-11-26 1994-10-25 Bard Bjerknes Method for adapting and implanting a dental porcelain chip, and the chip
EP0943296A1 (en) 1998-03-17 1999-09-22 Eidgenössische Technische Hochschule Zürich Tooth crowns and/or dental bridges
EP0943295A1 (en) 1998-03-17 1999-09-22 Eidgenössische Technische Hochschule Zürich Method for the manufactoring of tooth crowns and/or dental bridges
US8026943B2 (en) 2000-11-08 2011-09-27 Institut Straumann Ag Surface mapping and generating devices and methods for surface mapping and surface generation

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3213434C1 (en) * 1982-04-10 1983-10-27 Aldinger Guenther Process for the production of individually designed endoprostheses or implants
CH672722A5 (en) * 1986-06-24 1989-12-29 Marco Brandestini
DE4025728A1 (en) * 1990-08-14 1992-02-20 Wolfgang Becker Forming total dental prosthesis
DE4027328B4 (en) * 1990-08-29 2004-07-22 Sirona Dental Systems Gmbh 3D camera for the detection of surface structures, in particular for dental purposes
DE4034007C2 (en) * 1990-10-25 2001-05-10 Sirona Dental Systems Gmbh Method and device for the optical detection of surface structures on teeth
DE4204327C2 (en) * 1992-02-14 2000-07-06 Joachim Becker Method and device for producing a medical or dental restoration body
DE4214876C2 (en) * 1992-05-05 2000-07-06 Kaltenbach & Voigt Optical measurement of teeth without a matt surface treatment
DE19518702C2 (en) * 1995-05-22 1999-03-11 Sirona Dental Systems Gmbh Method and device for computer-aided restoration of teeth
SE509005C2 (en) * 1997-02-24 1998-11-23 Dentronic Ab Method and arrangement for contactless measuring of the three-dimensional shape of the object detala
DE10108221A1 (en) * 2001-02-21 2002-09-12 Charalambos Tassakos Method and device for optically detecting an object
AU2002321159B2 (en) 2001-07-13 2007-08-23 Degudent Gmbh Production of replacement teeth from a three-dimensionally determined and digitised positive model
DE10133568A1 (en) 2001-07-13 2003-01-30 Degussa Dental Gmbh & Co Kg Method and device for three-dimensional measurement and digitization of a body
EP1304088A1 (en) * 2001-10-09 2003-04-23 Mörmann, Werner Method and apparatus of manufacturing dental prosthesis
EP1870667A3 (en) * 2002-10-18 2008-03-19 Aepsilon Rechteverwaltungs GmbH Devices and methods for capturing surfaces and for producing denture elements
DE102005058760A1 (en) 2005-12-05 2007-06-06 Aesculap Ag & Co. Kg Method and device for preparing an implant from an implant material
DE102006010665B4 (en) * 2006-03-08 2008-02-21 Dentales Service Zentrum Gmbh & Co. Kg Production of dentures
DE102007012584A1 (en) * 2007-03-13 2008-09-18 Paul Weigl Method for controlling preparation of a prepared tooth by CAD method
WO2009026943A1 (en) * 2007-08-27 2009-03-05 Dentales Service Zentrum Gmbh & Co. Kg Production of a dental prosthesis
DE102009017450A1 (en) 2009-04-07 2010-10-21 Horvath, Domonkos, Dr. med. dent Industrially manufacturable veneer for permanent attachment to a tooth
CH711813A1 (en) 2015-11-26 2017-05-31 Quarz Partners Ag Blank block and method of making a dental restoration with a visually distinguishable separating segment and restorative segment.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1457269A (en) * 1962-11-30 1966-01-24 A method of moving bodies propulsion and the device and the body for the implementation of said method or similar method
US3777740A (en) * 1971-10-21 1973-12-11 Administrator For Veterans Aff Method and apparatus for non-invasively visualizing blood vessels
US3861044A (en) * 1972-05-04 1975-01-21 Jr William E Swinson Dental fitting process
JPS50108948A (en) * 1974-02-01 1975-08-27
JPS5418802B2 (en) * 1975-09-19 1979-07-10
US4182312A (en) * 1977-05-20 1980-01-08 Mushabac David R Dental probe
DE2936847A1 (en) * 1979-09-12 1981-03-19 Heitlinger Paul Method for producing dental spare and device for implementing the method
DE3003435A1 (en) * 1980-01-31 1981-08-06 Becker Dental Labor Gmbh Method and device for producing a crown part
FR2481923B1 (en) * 1980-05-09 1983-01-07 Termoz Christian

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0091876A1 (en) * 1982-04-14 1983-10-19 Duret, François Device for taking impressions by optical means, particularly for the automatic shaping of dental prostheses
FR2525103A1 (en) * 1982-04-14 1983-10-21 Francois Duret Device for taking impression by optical means, in particular for the automatic production of prostheses
FR2536654A1 (en) * 1982-11-30 1984-06-01 Duret Francois Method for producing a dental prosthesis
EP0110797A1 (en) * 1982-11-30 1984-06-13 François Duret Process for producing a dental prosthesis
EP0129531A2 (en) * 1983-06-17 1984-12-27 N.V. Stewal S.A. Process and device for producing a prosthesis
EP0129531A3 (en) * 1983-06-17 1985-08-21 N.V. Stewal S.A. Process and device for producing a prosthesis
EP0161400A1 (en) * 1984-04-19 1985-11-21 Wolfgang Orthuber Method of dentistry and device for bending a piece of wire and subjecting it to a torsional stress
EP0229266A2 (en) * 1985-11-29 1987-07-22 Dietmar Prof. Dr. Kubein-Meesenburg Reconstruction method for the upper jaw teeth
EP0229266A3 (en) * 1985-11-29 1987-10-28 Dietmar Prof. Dr. Kubein-Meesenburg Reconstruction method for the upper jaw teeth
DE3604531A1 (en) * 1986-02-13 1987-08-20 Kurt Kern Gmbh & Co Kg Method of producing denture parts and device for performing the method
FR2594320A1 (en) * 1986-02-20 1987-08-21 Spad Lab Method of improving the albedo of living elements for their three-dimensional optical analysis
EP0234422A1 (en) * 1986-02-20 1987-09-02 Laboratoire S.P.A.D. Method for improving the reflectivity of living matter for 3D optical analysis
FR2616316A1 (en) * 1987-06-15 1988-12-16 Cougoulie Jean Pierre Method for producing an endo-osseous oral implant
EP0299490A3 (en) * 1987-07-16 1991-03-13 Hans Dr. Steinbichler Method for producing dental prosthesis
DE3723555A1 (en) * 1987-07-16 1989-01-26 Steinbichler Hans Method for producing dental replacement
US4964770A (en) * 1987-07-16 1990-10-23 Hans Steinbichler Process of making artificial teeth
EP0299490A2 (en) * 1987-07-16 1989-01-18 Hans Dr. Steinbichler Method for producing dental prosthesis
EP0345975A2 (en) * 1988-06-09 1989-12-13 William Loran Apparatus for indirect dental machining
EP0345975A3 (en) * 1988-06-09 1991-06-26 William Loran Apparatus for indirect dental machining
EP0348061A2 (en) * 1988-06-24 1989-12-27 Zeneca Limited Stereolithographic Process for Preparing Prosthetic Devices
EP0348061A3 (en) * 1988-06-24 1990-09-19 Imperial Chemical Industries Plc Prosthetic devices
WO1990014803A1 (en) * 1989-05-31 1990-12-13 Berit Lindqvist Method of documentation and measurement within dentistry and a device for carrying out the method
US5320462A (en) * 1989-08-17 1994-06-14 Maud Bergman Method of producing dental restorations and medical prostheses
WO1991003988A1 (en) * 1989-09-22 1991-04-04 Peter Rohleder Device for the production of tooth replacement parts
WO1991003989A1 (en) * 1989-09-22 1991-04-04 Peter Rohleder Process and device for the production of an individual tooth replacement part
US5358406A (en) * 1990-11-26 1994-10-25 Bard Bjerknes Method for adapting and implanting a dental porcelain chip, and the chip
EP0490848A3 (en) * 1990-12-12 1993-12-29 Nobelpharma Ab A procedure and apparatus for producing individually designed, three-dimensional bodies usable as tooth replacements, prostheses, etc
EP0490848A2 (en) * 1990-12-12 1992-06-17 Nobelpharma AB A procedure and apparatus for producing individually designed, three-dimensional bodies usable as tooth replacements, prostheses, etc.
EP0543258A2 (en) * 1991-11-17 1993-05-26 Liconic Ag Method and device for the production of dental prosthesis
EP0943296A1 (en) 1998-03-17 1999-09-22 Eidgenössische Technische Hochschule Zürich Tooth crowns and/or dental bridges
EP0943295A1 (en) 1998-03-17 1999-09-22 Eidgenössische Technische Hochschule Zürich Method for the manufactoring of tooth crowns and/or dental bridges
WO1999047065A1 (en) 1998-03-17 1999-09-23 Eidgenössische Technische Hochschule Zürich Nichtmetallische Werkstoffe Dental crowns and/or dental bridges
US8026943B2 (en) 2000-11-08 2011-09-27 Institut Straumann Ag Surface mapping and generating devices and methods for surface mapping and surface generation
US8922635B2 (en) 2000-11-08 2014-12-30 Institut Straumann Ag Surface mapping and generating devices and methods for surface mapping and surface generation
US8982201B2 (en) 2000-11-08 2015-03-17 Institut Straumann Ag Surface mapping and generating devices and methods for surface mapping and surface generation

Also Published As

Publication number Publication date
AT14073T (en) 1985-07-15
JPS57173053A (en) 1982-10-25
JPH0317494B2 (en) 1991-03-08
EP0054785A1 (en) 1982-06-30
DE3171266D1 (en) 1985-08-08

Similar Documents

Publication Publication Date Title
US10543066B2 (en) Method and system for fabricating a dental coping, and a coping fabricated thereby
US10610107B2 (en) Methods and systems for creating and interacting with three dimensional virtual models
US10022916B2 (en) Method for manufacturing dental implant components
Renne et al. Evaluation of the accuracy of 7 digital scanners: An in vitro analysis based on 3-dimensional comparisons
Abdel-Azim et al. Comparison of the marginal fit of lithium disilicate crowns fabricated with CAD/CAM technology by using conventional impressions and two intraoral digital scanners
Infante et al. Fabricating complete dentures with CAD/CAM technology
Ender et al. In vivo precision of conventional and digital methods of obtaining complete-arch dental impressions
Nedelcu et al. Accuracy and precision of 3 intraoral scanners and accuracy of conventional impressions: A novel in vivo analysis method
Ender et al. In-vitro evaluation of the accuracy of conventional and digital methods of obtaining full-arch dental impressions.
ES2588707T3 (en) Procedure and system for the construction of a dental prosthesis
US20180153659A1 (en) System and method for effective planning, visualization, and optimization of dental restorations
Müller et al. Impact of digital intraoral scan strategies on the impression accuracy using the TRIOS Pod scanner.
US10143541B2 (en) Method for manipulating a dental virtual model, method for creating physical entities based on a dental virtual model thus manipulated, and dental models thus created
Pradíes et al. Clinical evaluation comparing the fit of all-ceramic crowns obtained from silicone and digital intraoral impressions based on wavefront sampling technology
Güth et al. Accuracy of digital models obtained by direct and indirect data capturing
KR101444727B1 (en) method for manufacturing guide stent of dental implant
Giménez et al. Accuracy of a digital impression system based on parallel confocal laser technology for implants with consideration of operator experience and implant angulation and depth.
KR101785586B1 (en) Dynamic Virtual Articulator
Fasbinder Computerized technology for restorative dentistry
KR101799878B1 (en) 2d image arrangement
US20150056575A1 (en) Dental device, and method for linking physical and digital data for diagnostic, treatment planning, patient education, communication, manufacturing, and data transfer purposes
Schaefer et al. Impact of digital impression techniques on the adaption of ceramic partial crowns in vitro
Da Costa et al. Evaluation of different methods of optical impression making on the marginal gap of onlays created with CEREC 3D
Seelbach et al. Accuracy of digital and conventional impression techniques and workflow
Persson et al. A three-dimensional evaluation of a laser scanner and a touch-probe scanner

Legal Events

Date Code Title Description
AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

17P Request for examination filed

Effective date: 19821216

REF Corresponds to:

Ref document number: 14073

Country of ref document: AT

Date of ref document: 19850715

Kind code of ref document: T

Format of ref document f/p: P

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19850703

Ref country code: NL

Effective date: 19850703

Ref country code: BE

Effective date: 19850703

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19850730

REF Corresponds to:

Ref document number: 3171266

Country of ref document: DE

Date of ref document: 19850808

Format of ref document f/p: P

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19851204

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
26N No opposition filed
PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: CH

Payment date: 19970103

Year of fee payment: 20

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: E. BLUM & CO. PATENTANWAELTE

Ref country code: CH

Ref legal event code: PUE

Owner name: DR. MED. DENT. WERNER HANS MOERMANN;DR. SC. TECHN.

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: GB

Payment date: 20001127

Year of fee payment: 20

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: FR

Payment date: 20001219

Year of fee payment: 20

PGFP Annual fee paid to national office [announced from national office to epo]

Ref country code: DE

Payment date: 20010112

Year of fee payment: 20

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20011203

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20011203

Ref country code: LI

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20011203

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Effective date: 20011203